WO2006002724A1 - Verfahren zum betreiben eines hybrid-kraftfahrzeuges - Google Patents
Verfahren zum betreiben eines hybrid-kraftfahrzeuges Download PDFInfo
- Publication number
- WO2006002724A1 WO2006002724A1 PCT/EP2005/005934 EP2005005934W WO2006002724A1 WO 2006002724 A1 WO2006002724 A1 WO 2006002724A1 EP 2005005934 W EP2005005934 W EP 2005005934W WO 2006002724 A1 WO2006002724 A1 WO 2006002724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- internal combustion
- combustion engine
- electric motor
- torque
- starting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K6/485—Motor-assist type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2300/00—Control related aspects of engine starting
- F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
- F02N2300/104—Control of the starter motor torque
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
Definitions
- the invention relates to a method for operating a hybrid motor vehicle, which has an internal combustion engine and at least one electric motor, according to the preamble of patent claim 1.
- hybrid vehicles having an electric machine (e.g., starter generator) between an engine and a transmission.
- the electric motor is usually separable in manual transmissions with respect to the transmission with a clutch, this clutch also serves as a starting clutch.
- the internal combustion engine can be switched off to save fuel in such vehicles.
- an automatic start-stop control / regulating device for an internal combustion engine of a motor vehicle is known.
- hybrid vehicles have much more powerful electric motors compared to a conventional starter, engine restart is possible with high comfort.
- Due to the high electromotive torque of the internal combustion engine can be towed in a short time to its starting speed or idling speed, so that the driver is a barely noticeable start delay.
- the starting process is acoustically more comfortable, since the typical Einspur- and running noise of a conventional starter is eliminated.
- alternating torques are due to the individual working cycles of the internal combustion engine - primarily the compression and subsequent expansion phase. They are in particular of the number of cycles (two- or four-stroke engine), of the number of cylinders, depending on the timing and the compression ratio. Furthermore, alternating torques are caused by the oscillating mass forces.
- the run-up of the internal combustion engine at startup is performed by a speed or torque-controlled method in order to follow a predetermined desired course with the smallest possible deviations.
- the global setpoint or desired torque curve specifies how the internal combustion engine runs from standstill to its start or idle speed. In this global setpoint course, the influence of the alternating torques is not included.
- deviations from the set course are basically compensated for by superposed controls, the alternating torques practically generate disturbances for the control, so that control deviations occur, in particular with the speed control of the electric motor - but also with torque control (even with constant torque pre-control, the changing reaction torques occur the internal combustion engine torque fluctuations). For this reason, there is potential for comfort improvement for the very short-term, highly dynamic starting process of the internal combustion engine.
- the invention has for its object to improve a performance of a hybrid motor vehicle in the startup or shutdown.
- the forces introduced via engine mounts and / or gearbox bearings and / or further assembly bearings into a vehicle body are measured, wherein the measurement takes place only in advance to optimize the torque pilot control curve and / or permanently by sensors arranged in the vehicle.
- a torque curve of the electric motor for starting the internal combustion engine or when switching off the internal combustion engine is thereby pre-controlled in such a way that the forces on the engine mounts and / or gearbox bearings and / or other aggregate bearings have minimal amplitudes. This makes it possible to obtain a measure of the subjective sense of comfort in order to be able to perform or apply a comfort-optimized engine start based thereon.
- an automatic start-stop system which shuts off the engine in predetermined operating situations and starts again when the load is requested by a driver by means of the starter generator.
- the torque curve of the electric motor or of the starter generator is pre-controlled such that an excitation of natural frequencies of the vehicle body is minimized.
- the torque curve of the starter generator is so controlled that a predetermined basic torque curve to overcome a mean friction and ensuring a predetermined angular velocity of a crankshaft of the internal combustion engine is superimposed on a dependent of the position of the crankshaft change moment.
- the method is carried out until reaching a predetermined starting speed, at which a fuel injection begins, or a predetermined idling speed.
- a further increase in comfort when starting the internal combustion engine with particularly soft incipient combustion engine operation is achieved in that the method is additionally carried out after reaching the starting speed for a predetermined period of time, in addition to the precontrolled torque curve of the electric motor or the starter generator superimposed on a counter-moment which damps torque fluctuations due to first incipient combustion processes.
- the method according to the invention is preferably used when switching off or starting an internal combustion engine of a hybrid motor vehicle with an internal combustion engine and an electric machine (eg starter generator), wherein in predetermined operating situations, for example when stopping at a traffic light or in overrun, a start-stop -Automatik the internal combustion engine for fuel saving off (stop-phase) and restarts when requested by a driver by means of the electric machine.
- an electric machine eg starter generator
- 16 denotes a time t 0 at which an engine start starts.
- a time ti 18 is designated, in which a starting speed at which a fuel injection and possibly an ignition takes place in the gasoline engine, or an idle speed is reached.
- a dashed line 20 indicates this start or idle speed.
- a dashed line first graph 22 illustrates the time course of the rotational speed of the internal combustion engine between the time t 0 16 and the time tj 18 at conventional torque precontrol of the electric machine.
- a drawn with a solid line second graph 24 illustrates the time course of the speed of the internal combustion engine between the time t 0 16 and the time tt 18 in inventive torque feedforward control of the electric machine.
- a dashed line third graph 26 illustrates the timing of a conventional torque feedforward control of the electric machine between time t 0 16 and time t
- a solid line drawn fourth graph 28 illustrates the time course of a torque feedforward control of the electric machine according to the invention between the time t 0 16 and the time ti 18. 30 are torque increase of the inventive time curve of the torque feedforward electrical machine referred to torque irregularities due compensate the compression work by the internal combustion engine.
- an improvement in the quality of the engine run-up is achieved by taking account of known alternating torque influences already in the torque precontrol of the electric machine.
- the starting of the internal combustion engine takes place in such a manner that the electric machine is precontrolled by means of a crankshaft angle related torque curve in the control unit of the electric machine, which takes into account the fluctuations caused by the alternating torques such that a predetermined nominal speed curve (FIG. Also Sollmomentenverlauf) with minimum deviations is maintained.
- This method can also be superimposed on a control to compensate for remaining deviations.
- the default torque curve can be determined beforehand by tests on the internal combustion engine by measuring the torque and the angular position of the crankshaft in a time-resolved manner during starting operations or even when operating at different constant rotational speeds. Alternatively, the default torque curve can also be calculated. Ideally, the influence of different engine temperatures (eg by determining the coolant or oil temperature) and / or the intake air pressure and / or the intake air mass flow and / or the cylinder charge and / or the intake air temperature and / or the valve control times and / or valve strokes is also taken into consideration the friction behavior, the heat transfer behavior and the compression work can change as a result of different engine fillings.
- different engine temperatures eg by determining the coolant or oil temperature
- the intake air pressure and / or the intake air mass flow and / or the cylinder charge and / or the intake air temperature and / or the valve control times and / or valve strokes is also taken into consideration the friction behavior, the heat transfer behavior and the compression work can change as a result of different
- the predetermined for the engine start torque curve is then determined by a Grundfitmomentverlauf to overcome the average friction and ensuring the desired angular acceleration of the engine crankshaft superimposed on the crankshaft angle, weighted alternating torque is superimposed so that the speed deviations (or torque fluctuations) are minimal.
- the setpoint torque curve is determined by measuring the forces introduced into the vehicle body via the engine and / or transmission bearings during a starting process and specifying the torque curve of the electric motor to be predetermined in such a way that the bearing forces have minimal amplitudes .
- the torque curve can also be tuned in such a way that the excitation of body natural frequencies is as low as possible. For example, the subjective perceived by a driver or vehicle occupant disturbing action on the body is detected and minimized by mapping in the default torque curve for the engine start.
- the target torque curve is assigned to the crank position of the engine.
- a discharge detection can be used, which detects the angular position of the crankshaft when stopping the engine or a method are used, that the engine stops in a defined angular position.
- a known method for setting a defined crankshaft position is disclosed for example in DE 102 01 278 A1.
- the method may also be used for a predetermined period of time beyond the time when the starting speed 20 is reached.
- the starting rotational speed 20 is that rotational speed at which fuel injection and, if necessary, ignition start or take place (gasoline engine).
- the torque fluctuations caused by the first incipient combustion processes are additionally taken into account and dampened with corresponding electromotive counter-torques of the electric motor in the torque course to be precontrolled. to ensure a particularly soft onset of internal combustion engine operation at the start of the engine. These precontrol torques are then deactivated in a subsequent second period of time.
- a method in which an optimal speed increase during the starting process of the internal combustion engine or speed drop during the switching off of the internal combustion engine can be achieved (specification of a time course in an instationary phase).
- the optimum course of the speed increase or of the speed drop is determined by an evaluation of the forces introduced into the body via the assembly mounting. This makes it possible to obtain a measure of the subjective sense of comfort in order to perform or apply a comfort-optimized start or shutdown of the internal combustion engine based thereon.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/641,294 US7562732B2 (en) | 2004-07-02 | 2006-12-19 | Method for operating a hybrid motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032173.6 | 2004-07-02 | ||
DE102004032173.6A DE102004032173B4 (de) | 2004-07-02 | 2004-07-02 | Verfahren zum Betreiben eines Hybrid-Kraftfahrzeuges |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/641,294 Continuation US7562732B2 (en) | 2004-07-02 | 2006-12-19 | Method for operating a hybrid motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006002724A1 true WO2006002724A1 (de) | 2006-01-12 |
WO2006002724A8 WO2006002724A8 (de) | 2006-12-14 |
Family
ID=34969713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/005934 WO2006002724A1 (de) | 2004-07-02 | 2005-06-02 | Verfahren zum betreiben eines hybrid-kraftfahrzeuges |
Country Status (4)
Country | Link |
---|---|
US (1) | US7562732B2 (de) |
CN (1) | CN100556725C (de) |
DE (1) | DE102004032173B4 (de) |
WO (1) | WO2006002724A1 (de) |
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CN104859634A (zh) * | 2015-05-07 | 2015-08-26 | 郑州宇通客车股份有限公司 | 一种混合动力汽车发动机快速停机方法和混合动力系统 |
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2005
- 2005-06-02 CN CNB2005800226613A patent/CN100556725C/zh active Active
- 2005-06-02 WO PCT/EP2005/005934 patent/WO2006002724A1/de active Application Filing
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2006
- 2006-12-19 US US11/641,294 patent/US7562732B2/en active Active
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CN102529947A (zh) * | 2010-12-29 | 2012-07-04 | 上海汽车集团股份有限公司 | 一种混合动力系统的控制方法 |
CN104859634A (zh) * | 2015-05-07 | 2015-08-26 | 郑州宇通客车股份有限公司 | 一种混合动力汽车发动机快速停机方法和混合动力系统 |
Also Published As
Publication number | Publication date |
---|---|
DE102004032173A1 (de) | 2006-02-02 |
US7562732B2 (en) | 2009-07-21 |
WO2006002724A8 (de) | 2006-12-14 |
CN100556725C (zh) | 2009-11-04 |
US20070099749A1 (en) | 2007-05-03 |
CN1980807A (zh) | 2007-06-13 |
DE102004032173B4 (de) | 2015-07-30 |
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